vfs: prefer ->dentry->d_sb to ->mnt->mnt_sb

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 5 insertions, 5 deletions

diff --git a/fs/autofs4/dev-ioctl.c b/fs/autofs4/dev-ioctl.c
index 509fe1eb66ae..76741d8d7786 100644
--- a/fs/autofs4/dev-ioctl.c
+++ b/fs/autofs4/dev-ioctl.c
@@ -194,7 +194,7 @@ static int find_autofs_mount(const char *pathname,
                 return err;
         err = -ENOENT;
         while (path.dentry == path.mnt->mnt_root) {
-                if (path.mnt->mnt_sb->s_magic == AUTOFS_SUPER_MAGIC) {
+                if (path.dentry->d_sb->s_magic == AUTOFS_SUPER_MAGIC) {
                         if (test(&path, data)) {
                                 path_get(&path);
                                 if (!err) /* already found some */
@@ -212,7 +212,7 @@ static int find_autofs_mount(const char *pathname,
 
 static int test_by_dev(struct path *path, void *p)
 {
-        return path->mnt->mnt_sb->s_dev == *(dev_t *)p;
+        return path->dentry->d_sb->s_dev == *(dev_t *)p;
 }
 
 static int test_by_type(struct path *path, void *p)
@@ -538,11 +538,11 @@ static int autofs_dev_ioctl_ismountpoint(struct file *fp,
                         err = find_autofs_mount(name, &path, test_by_type, &type);
                 if (err)
                         goto out;
-                devid = new_encode_dev(path.mnt->mnt_sb->s_dev);
+                devid = new_encode_dev(path.dentry->d_sb->s_dev);
                 err = 0;
                 if (path.mnt->mnt_root == path.dentry) {
                         err = 1;
-                        magic = path.mnt->mnt_sb->s_magic;
+                        magic = path.dentry->d_sb->s_magic;
                 }
         } else {
                 dev_t dev = sbi->sb->s_dev;
@@ -556,7 +556,7 @@ static int autofs_dev_ioctl_ismountpoint(struct file *fp,
                 err = have_submounts(path.dentry);
 
                 if (follow_down_one(&path))
-                        magic = path.mnt->mnt_sb->s_magic;
+                        magic = path.dentry->d_sb->s_magic;
         }
 
         param->ismountpoint.out.devid = devid;